What is the Least Common Multiple of 16686 and 16691?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 16686 and 16691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16686 and 16691, than apply into the LCM equation.

GCF(16686,16691) = 1
LCM(16686,16691) = ( 16686 × 16691) / 1
LCM(16686,16691) = 278506026 / 1
LCM(16686,16691) = 278506026

Least Common Multiple (LCM) of 16686 and 16691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16686 and 16691. First we will calculate the prime factors of 16686 and 16691.

Prime Factorization of 16686

Prime Factorization of 16691

Now multiplying the highest exponent prime factors to calculate the LCM of 16686 and 16691.

LCM(16686,16691) = 2¹ × 3⁴ × 103¹ × 16691¹
LCM(16686,16691) = 278506026